Probability - Data Distribution

Good day - I have a question. I have data set that follows a Weibull distrbution as follows:

9.15 + WEIB(0.827, 2.68)

How can I translate this into the standard Weibull distribution:


I will need to calculate the probability of P(X<=x) in Excel. Excel has the following syntax:


I would appreciate your input.

Thank You,